Conventional Safety Valve Manufacturer in Canada

Conventional safety valves provide automatic overpressure protection by releasing excess pressure before equipment is damaged and resealing once normal operating pressure returns. As a leading Conventional Safety Valve Manufacturer in Canada, ValvesOnly Canada delivers reliable pressure relief valves to industries across Toronto, Calgary, Edmonton, Vancouver, Montreal, and throughout Canada. 

Conventional Safety Valve Engineering Specifications:

• Nominal Size: ½” to 12″
• Pressure Class: Class 150 to Class 2500
• Temperature Range: -29°C to 538°C
• Design Standards: API 526, ASME Section VIII, ASME B16.34
• Seat Tightness Standard: API 527
• Inspection and Testing: Hydrostatic Test, Set Pressure Test, Seat Leakage Test, Functional Performance Test

Conventional Safety Valve Body Materials:

Available Body Material Grades: 

• ASTM A216 WCB / WCC
• ASTM A351 CF8 / CF8M
• ASTM A890 F51
• ASTM A890 F53 / F55
• ASTM A351 CN7M
• ASTM B564 Hastelloy C276

Flow Control Components: 

• Disc: Stainless Steel / Duplex Stainless Steel / Hastelloy
• Stem: ASTM A182 F304 / F316
• Spring: Alloy Steel / Stainless Steel

Sealing Arrangement:

• Seat: Metal Seated
• Gasket: Graphite / Spiral Wound
• Packing: Graphite

Conventional Safety Valve Working Principle:

The Conventional Safety Valve is a safety valve that utilizes a spring to release any excess pressure that builds up in a pressured machine. The compression spring ensures that the safety valve remains closed until the pressure in the system is equal to the preset pressure.

In case the pressure goes beyond the specified limit, the safety valve will open itself to allow excess pressure to be released. Once the pressure reduces to safe levels, the spring will force the disc back onto the seat.

Conventional Safety Valve Material Options:

Standard Materials:

Component	Material	Grade	Typical Application
Body	Carbon Steel	ASTM A216 WCB / WCC	General industrial pressure systems
Body	Stainless Steel	ASTM A351 CF8 / CF8M	Corrosive process applications
Body	Duplex Stainless Steel	ASTM A890 F51	Marine and offshore installations
Body	Super Duplex Stainless Steel	ASTM A890 F53 / F55 / 2507	High chloride environments
Body	Alloy 20	ASTM A351 CN7M	Acidic chemical service
Body	Hastelloy	ASTM B564 C276	Severe corrosive process media

Special Materials Available on Request:

• Monel 400 for marine and hydrofluoric acid service
• Inconel 625 / 718 for elevated temperature and pressure applications
• Titanium Grade 2 / Grade 5 for seawater environments
• Duplex Stainless Steel F60 for enhanced corrosion resistance
• Additional exotic alloys available according to project specifications and process requirements.

Conventional Safety Valve Product Features:

• Valve Type: Conventional Spring Loaded Safety Valve
• Operation: Automatic Spring Loaded
• Body Construction: Bolted Bonnet
• Pressure Setting: Factory preset according to customer operating requirements
• Suitable Media: Steam, gas, air, vapour, and non-corrosive industrial fluids

Key Advantages:

• Proper functioning of set pressure
• Quick reaction to pressure release
• Automatic reset once pressure returns to normal
• Reliable spring-loaded system
• Very little maintenance needed
• Extended service life
• Consistent seal even at varying operating conditions

Inspection Procedures:

• Hydrostatic Pressure Testing
• Set Pressure Calibration
• Seat Leakage Testing
• Functional Performance Testing
• Visual and Dimensional Inspection

Conventional Safety Valve Connection Types:

Our Conventional Safety Valves are available with multiple connection configurations to suit various industrial piping systems.

• Flanged as per ASME B16.5
• Threaded (NPT / BSP)
• Socket Weld
• Customized end connections based on project requirements
• Special flange drilling available upon request

Conventional Safety Valve Industry Applications:

• Oil and gas sector: Facilities for production, compressors, separators, and pressure-protection devices
• Power sector: Boilers, steam plant, turbines, and auxiliary utility systems
• Petrochemical sector: Reactors, pressure vessels, storage vessels, and process units
• Chemical process sector: Process equipment dealing with gases, vapors, and pressure fluid
• Water and wastewater treatment: Pumping stations, pressure vessels, and filtration systems
• Marine sector: Engine room machinery and auxiliary systems, and pressure vessels aboard ship
• Air compressor systems: Air receivers and compressed air distribution networks
• Heat exchanger systems: Pressure protection for thermal process equipment
• Pipeline infrastructure: Industrial transmission lines and pressurized process piping